已知X+Y=6,xy=4,则求X²Y+XY²的值
问题描述:
已知X+Y=6,xy=4,则求X²Y+XY²的值
答
X²Y+XY²
=XY(X+Y)
=6*4
=24
已知X+Y=6,xy=4,则求X²Y+XY²的值
X²Y+XY²
=XY(X+Y)
=6*4
=24